I’ve just uploaded an important article to my main Washerhelp site which concerns us all. It describes how any one of us could be inadvertently contributing to damaging the environment if someone connects, or has previously connected any part of our plumbing incorrectly. If they have, you will not know about it unless you check (there are instructions on how to check later). This could have happened before you moved in but unfortunately it’s the present householder who is responsible for putting it right. The good news is it shouldn’t be too difficult in most cases.